Measurements and Instrumentation - Engineering

Q1:

The circuit of figure is used to measure the value Rx. Ammeter resistance Ra = 0.1 Ω voltmeter resistance Rv = 5000 Ω. It Rx1 and Rx2, are the measured values of Rx with switch in position 1 and 2, the mean of Rx1, and Rx2, is

A 9.98 Ω

B 10 Ω

C 10.04 Ω

D 10.1 Ω

ANS:C - 10.04 Ω

Please explain the method of the solution.